VSCode:https://vscode.en.softonic.com/
Cesium-1.71.zip:官网下载或者https://download.csdn.net/download/xmzmqx/12585173
(1)创建cesium-demo文件夹
(2)把Build文件夹复制到此文件夹下
(3)把Apps下的HelloWorld.html复制到此文件夹下
(4)更改HelloWorld.html的Cesium.js路径和widgets.css路径
(1)VSCode安装Live Server插件
(2)右键HelloWorld.html,Open with Live Server